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Release
Arctic Sea Ice Reaches Lowest Coverage for 2008
09.16.08 -- Arctic sea ice coverage appears to have reached its lowest extent for 2008 and the second-lowest amount recorded since the dawn of the satellite era.
Multimedia
Crack in the Petermann Glacier
09.12.08 -- Researchers at the Byrd Polar Research Center at Ohio State University have expressed concern at the presence of a rift in Greenland's Petermann Glacier.
Multimedia
Retreat of Serson Ice Shelf
09.11.08 -- As recently as the early 1900s, the northern coast of Canada's Ellesmere Island was fringed by a continuous expanse of ice. By July 2008, warming Arctic climate had reduced the continuous ice to five isolated shelves. In July and Aguust three of the shelves experienced further significant retreat.
Multimedia
Both Routes Around Arctic Open at Summer's End
09.09.08 -- As of the first week of September 2008, Arctic sea ice extent had not fallen below 2007's record low, but for the first time since satellite observations began three decades ago, sea ice retreated enough to create open waters all the way around the northern ice pack.
Multimedia
Wintertime Disinteghration of Wilkins Ice Shelf
07.19.08 -- On the Antarctic Peninsula, the Wilkins Ice Shelf historically extended toward Charcot Island in the northwest, and Latady Island in the southwest. By July 2008, the ice shelf's connection to Charcot Island, which had helped to hold the shelf in place, was nearly gone.
Feature
Researchers Warm Up to Melt's Role in Greenland Ice Loss
04.17.08 -- Whether or not summertime melt has a significant influence on Greenland ice loss has been an endless topic of debate among scientists -- until now.
Multimedia
2008 Arctic Sea Ice Concentration Map
03.18.08 -- Using the latest satellite observations from early 2008, NASA researchers and others report that the Arctic is still on 'thin ice' when it comes to the condition of sea ice cover in the region. This ice concentration map from March 9, 2008, shows maximum extent of sea ice in the Northern Hemisphere.
Multimedia
Arctic Sea Ice Distribution by Age
03.18.08 -- The sea ice in the Arctic is much younger than normal, with vast regions now covered by first-year ice. The left image shows February distribution of ice by its age during normal Arctic conditions (1985-2000 average), and the right illustrates February 2008 Arctic ice age distribution.
Multimedia
Algae Bloom in Antarctic Sea Ice
03.12.08 -- It was late summer 2007 in the Southern Hemisphere when NASA's Aqua satellite captured this image of Antarctica's Ross Sea (left). The image reveals a subtler sign of the growing season: The yellowish-green tinge of some of the sea ice is probably a bloom of algae.
Multimedia
Mega-iceberg A53a, South Atlantic
03.05.08 -- Astronauts captured images of this massive iceberg from the International Space Station on Jan. 18, 2008. At the time, the iceberg was in the Atlantic Ocean some distance from Tierra Del Fuego in South America. Glaciologists think this iceberg is fast approaching the point of breaking up.

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